I installed L4T Rel 19.2 and the CUDA 6.0 Toolkit on the TK1.
After the board wakes up from “standby” (screen was disabled), the mouse cursor disappeared.
While moving the mouse, a scattered line is drawn on the screen. Removing the
mouse from and replugging it to the usb port (via an usb hub) doesnt resolve the problem.
I had to reboot to get the mouse back.
What I would do is unplug the HDMI cable from the monitor side and wait 3 seconds to plug it back in. The issue occurred again and I did the same step and brings the mouse back.
I just turned off the screensaver and disable the power-saver features. A time or two since then it has disappeared, mostly from leaving it on overnight with the monitor powered off.